This value determines the maximum number of attempts a Student has
in answering any of the questions in the lesson. In the case of questions
which do not provide the answer, for example Short Answer
and Numerical questions, this value provides a necessary escape routine to
the next page in the lesson.

The default value is 5. Smaller values may discourage the student
from thinking about the questions. Larger values may lead to more
frustration.

Setting this value to one gives the students just one chance to answer each
question. This gives a similar type of assignment to the Quiz module except
that the questions are presented on individual pages.

Note that this value is global parameter and that it applies to all the
questions in the lesson regardless of their type.

Note that this parameter does not apply to teachers checking
of questions or navigating through the lesson. Checking the number of attempts
relies on values stored in the database and question attempts by teachers are
not recorded. The teacher should after all know the answers!